A multi-functional tool (30) comprising an extendable power tool handle unit (32) with an interchangeable connect feature able to receive and power various size interchangeable, adaptable adjustable wrench head units (50) and other adaptable tool attachments. The interchangeable wrench head units are easily connected and disconnected to the power tool handle unit. Each interchangeable adjustable wrench head unit has a self-contained transmission connectible to and powered by the adaptive power handle unit. The interchangeable wrench head units comprise of a moveable jaw, a stationary jaw, and a worm gear (58). The worm gear is meshed with a rack of the moveable jaw (55) and the worm gear is driven by a motor (45) and transmission. Activation of the motor produces linear reciprocating motion of the adjustable jaw. A power source from the handle provides the power to a control switch (140). The switch controls the function of the adjustable wrench heads and other powered tool attachments.